#28359A#28359A

#28359A is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.9% C 0.163 H 270.8°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#28359A
RGB	rgb(40, 53, 154)
HSL	hsl(233, 59%, 38%)
HSV	hsv(233, 74%, 60%)
CMYK	cmyk(74%, 65.6%, 0%, 39.6%)
CIE-LAB	lab(27.65, 30.77, -56.55)
CIE-LCH	lch(27.65, 64.38, 298.55°)
OKLab	oklab(38.86% 0.0023 -0.1635)
OKLCH	oklch(38.86% 0.163 270.8)
XYZ	xyz(7.9789, 5.3296, 31.1738)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28359A #9A8D28

analogous

#286E9A #28359A #54289A

triadic

#28359A #9A2835 #359A28

tetradic

#28359A #9A286E #9A8D28 #289A54

square

#28359A #9A286E #9A8D28 #289A54

split-complementary

#28359A #9A5428 #6E9A28

monochromatic

#0F1439 #1B2469 #28359A #3546CA #6572D7

Accessibility & contrast

On white

10.16

#28359A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#28359A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28359A

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28359A	#FFFFFF	#000000	##FFFFFF
##28359A	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479D

Deuteranopia (green-blind)

#003C98

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #28359a;
/* rgb */ color: rgb(40, 53, 154);
/* oklch */ color: oklch(38.9% 0.163 270.8);

Tailwind

colors: {
  custom: {
    50: '#736cb9',
    500: '#28359a',
    950: '#000000',
  },
}

SCSS

$custom: #28359a;
$custom-light: #736cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#28359a",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 154
  },
  "hsl": {
    "h": 233.158,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38863,
    "c": 0.16347,
    "h": 270.8
  },
  "luminance": 0.0533
}

Semantic roles & 50–950 ramp

primary

#28359A

secondary

#BDB261

accent

#D046E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #28359A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →